mikewalton206 Hmm I can still download and open it from that link ok from here.
What C2 version are you using? I'm able to open it from that link in R192 without any problems :S
Another thing you can try is renaming it to:
TurnSystem.zip
Then right-click and extract it to a folder, then run the TurnSystem.capproj file inside that folder (maybe AntiVirus is blocking it?)
Hope that helps!